HBD-E770W
89
MB-134 BOARD IC1201 LAN8700C-AEZG-CTI (ETHERNET INTERFACE)
Pin No.
Pin Name
I/O
Description
1
TX_ER
I
Transmit error signal input from the BD decoder
2
MDC
I
Serial data transfer clock signal input from the BD decoder
3
CRS
O
Carrier sense signal output to the BD decoder
4
MDIO
I/O
Two-way data bus with the BD decoder
5
nRST
I
Reset signal input from the system controller
6
TX_EN
I
Transmit enable signal input from the BD decoder
7
VDD33
-
Power supply terminal (+3.3V)
8
VDD_CORE
-
Power supply terminal (+1.8V) Not used
9 to 12
PA0 to PA3
-
Not used
13
XTAL2
O
System clock output terminal (25 MHz)
14
REFCLK
I
System clock input terminal (25 MHz)
15 to 18
RXD3 to RXD0
O
Receive data output to the BD decoder
19
RX_DV
O
Receive data valid signal output to the BD decoder
20
RX_CLK
O
Receive clock signal output to the BD decoder
21
RX_ER
O
Receive error signal output to the BD decoder
22
TX_CLK
O
Transmit clock signal output to the BD decoder
23, 24
TXD0, TXD1
I
Transmit data input from the BD decoder
25
VDDIO
-
Power supply terminal (+3.3V)
26, 27
TXD2, TXD3
I
Transmit data input from the BD decoder
28
TXN
O
Serial data (negative) output to the ethernet connector
29
TXP
O
Serial data (positive) output to the ethernet connector
30
VDDA3.3
-
Power supply terminal (+3.3V) (analog system)
31
RXN
I
Serial data (negative) input from the ethernet connector
32
RXP
I
Serial data (positive) input from the ethernet connector
33
VDDA3.3
-
Power supply terminal (+3.3V) (analog system)
34
EXRES1
I
Reference resistor connection terminal
35
VDDA3.3
-
Power supply terminal (+3.3V) (analog system)
36
COL
O
Collision detect signal output to the BD decoder
www. xiaoyu163. com
QQ 376315150
9
9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
